Semiconductor laser module

Details Semiconductor laser module Semiconductor laser module

1986-10-31

1988-12-13

Mullins, James B.

350 9618, 350 9620, G02B 626

Patent

active

047906189

ABSTRACT:
The disclosure describes a semiconductor laser module having a semiconductor laser and an optical fiber for guiding a laser beam which issues from the semiconductor laser to become incident to the optical fiber, comprising an optical fiber, having an end face which is included 3.degree. to 10.degree. relative to a plane which is perpendicular to an axis of the optical fiber, a transparent optical member having a first end face which is intimately engaged with the end face of the optical fiber and a second end face which faces of the first end face and is perpendicular to the axis of the optical fiber, the optical member being substantially the same in refractive index as a core of the optical fiber and extending over a predetermined length along the axis of the optical fiber, and a reflection preventing film provided on the second end face of the optical member, whereby the laser beam is inclined to the reflection preventing film with an optical axis of the laser beam extending perpendicular to the second end face.

REFERENCES:
Ulrich et al., "Beam-To-Fiber Coupling With Low Standing Wave Ratio," Applied Optics, vol. 19, No. 4 Jul. 15, 1980, pp. 2453-2456.

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